From f2f1f2472c5efc541bd53f51289ad58a86fa2d41 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Sat, 20 May 2017 17:35:06 -0400 Subject: ./tools/notsd-move --- src/basic/smack-util.c | 241 ------------------------------------------------- 1 file changed, 241 deletions(-) delete mode 100644 src/basic/smack-util.c (limited to 'src/basic/smack-util.c') diff --git a/src/basic/smack-util.c b/src/basic/smack-util.c deleted file mode 100644 index 3a3df987df..0000000000 --- a/src/basic/smack-util.c +++ /dev/null @@ -1,241 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2013 Intel Corporation - - Author: Auke Kok - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see . -***/ - -#include -#include -#include -#include -#include - -#include "alloc-util.h" -#include "fileio.h" -#include "log.h" -#include "macro.h" -#include "path-util.h" -#include "process-util.h" -#include "smack-util.h" -#include "string-table.h" -#include "xattr-util.h" - -#ifdef HAVE_SMACK -bool mac_smack_use(void) { - static int cached_use = -1; - - if (cached_use < 0) - cached_use = access("/sys/fs/smackfs/", F_OK) >= 0; - - return cached_use; -} - -static const char* const smack_attr_table[_SMACK_ATTR_MAX] = { - [SMACK_ATTR_ACCESS] = "security.SMACK64", - [SMACK_ATTR_EXEC] = "security.SMACK64EXEC", - [SMACK_ATTR_MMAP] = "security.SMACK64MMAP", - [SMACK_ATTR_TRANSMUTE] = "security.SMACK64TRANSMUTE", - [SMACK_ATTR_IPIN] = "security.SMACK64IPIN", - [SMACK_ATTR_IPOUT] = "security.SMACK64IPOUT", -}; - -DEFINE_STRING_TABLE_LOOKUP(smack_attr, SmackAttr); - -int mac_smack_read(const char *path, SmackAttr attr, char **label) { - assert(path); - assert(attr >= 0 && attr < _SMACK_ATTR_MAX); - assert(label); - - if (!mac_smack_use()) - return 0; - - return getxattr_malloc(path, smack_attr_to_string(attr), label, true); -} - -int mac_smack_read_fd(int fd, SmackAttr attr, char **label) { - assert(fd >= 0); - assert(attr >= 0 && attr < _SMACK_ATTR_MAX); - assert(label); - - if (!mac_smack_use()) - return 0; - - return fgetxattr_malloc(fd, smack_attr_to_string(attr), label); -} - -int mac_smack_apply(const char *path, SmackAttr attr, const char *label) { - int r; - - assert(path); - assert(attr >= 0 && attr < _SMACK_ATTR_MAX); - - if (!mac_smack_use()) - return 0; - - if (label) - r = lsetxattr(path, smack_attr_to_string(attr), label, strlen(label), 0); - else - r = lremovexattr(path, smack_attr_to_string(attr)); - if (r < 0) - return -errno; - - return 0; -} - -int mac_smack_apply_fd(int fd, SmackAttr attr, const char *label) { - int r; - - assert(fd >= 0); - assert(attr >= 0 && attr < _SMACK_ATTR_MAX); - - if (!mac_smack_use()) - return 0; - - if (label) - r = fsetxattr(fd, smack_attr_to_string(attr), label, strlen(label), 0); - else - r = fremovexattr(fd, smack_attr_to_string(attr)); - if (r < 0) - return -errno; - - return 0; -} - -int mac_smack_apply_pid(pid_t pid, const char *label) { - const char *p; - int r = 0; - - assert(label); - - if (!mac_smack_use()) - return 0; - - p = procfs_file_alloca(pid, "attr/current"); - r = write_string_file(p, label, 0); - if (r < 0) - return r; - - return r; -} - -int mac_smack_fix(const char *path, bool ignore_enoent, bool ignore_erofs) { - struct stat st; - int r = 0; - - assert(path); - - if (!mac_smack_use()) - return 0; - - /* - * Path must be in /dev and must exist - */ - if (!path_startswith(path, "/dev")) - return 0; - - r = lstat(path, &st); - if (r >= 0) { - const char *label; - - /* - * Label directories and character devices "*". - * Label symlinks "_". - * Don't change anything else. - */ - - if (S_ISDIR(st.st_mode)) - label = SMACK_STAR_LABEL; - else if (S_ISLNK(st.st_mode)) - label = SMACK_FLOOR_LABEL; - else if (S_ISCHR(st.st_mode)) - label = SMACK_STAR_LABEL; - else - return 0; - - r = lsetxattr(path, "security.SMACK64", label, strlen(label), 0); - - /* If the FS doesn't support labels, then exit without warning */ - if (r < 0 && errno == EOPNOTSUPP) - return 0; - } - - if (r < 0) { - /* Ignore ENOENT in some cases */ - if (ignore_enoent && errno == ENOENT) - return 0; - - if (ignore_erofs && errno == EROFS) - return 0; - - r = log_debug_errno(errno, "Unable to fix SMACK label of %s: %m", path); - } - - return r; -} - -int mac_smack_copy(const char *dest, const char *src) { - int r = 0; - _cleanup_free_ char *label = NULL; - - assert(dest); - assert(src); - - r = mac_smack_read(src, SMACK_ATTR_ACCESS, &label); - if (r < 0) - return r; - - r = mac_smack_apply(dest, SMACK_ATTR_ACCESS, label); - if (r < 0) - return r; - - return r; -} - -#else -bool mac_smack_use(void) { - return false; -} - -int mac_smack_read(const char *path, SmackAttr attr, char **label) { - return -EOPNOTSUPP; -} - -int mac_smack_read_fd(int fd, SmackAttr attr, char **label) { - return -EOPNOTSUPP; -} - -int mac_smack_apply(const char *path, SmackAttr attr, const char *label) { - return 0; -} - -int mac_smack_apply_fd(int fd, SmackAttr attr, const char *label) { - return 0; -} - -int mac_smack_apply_pid(pid_t pid, const char *label) { - return 0; -} - -int mac_smack_fix(const char *path, bool ignore_enoent, bool ignore_erofs) { - return 0; -} - -int mac_smack_copy(const char *dest, const char *src) { - return 0; -} -#endif -- cgit v1.2.3-54-g00ecf